Liquid spray nozzle

ABSTRACT

A liquid spray nozzle has an adjustable head threadedly supported in the nozzle body to permit adjustment of the nozzle opening. An elongated rod extending through an eccentric opening through the nozzle head is threadedly received in one of a plurality of threaded bores located in the nozzle body circumferentially spaced about the axis of the adjustable head. When turned into one of the threaded bores, the rod holds the nozzle head in the adjusted position.

United States Patent 1191 Roberson [4 1 Oct. 29, 1974 LIQUID SPRAYNOZZLE 2,048,l25 7/1936 Irving et al 239/514 2,l08,207 2 I938 P k 239514 [75] Invenm gal James cmclmatl 2,465,236 3i1949 15:13:21 al 239,/456 [73] Assignee: Allis-Chalmers Corporation, Primary Examiner-MHenson Wood,

Milwaukee, Wi Assistant Examiner-John J. Love Filed: Dec. 1973 Attorney,Agent, or Firm-John P. Hmes [21] App]. No.: 429,219 [57] ABSTRACT Aliquid spray nozzle has an adjustable head thread- 52 us. 01 239/456,239/514, 239/539 edly supported 19 the nozzle body to 129mm w [51] Int.Cl B05b l/32 of the nozzle p Q elongated Tod extend- [58] Field 61Search 239/457, 456, 539, 579, e through an 9999mm? 9 m through thenozzle 239 514 5 5 5 5 head is threadedly recewed in one of a pluralityof threaded bores located in the nozzle body circumfer- [5 R f r Citedentially spaced about the axis of the adjustable head. UNITED STATESPATENTS When turned into one of the threaded bores, the rod 979,95512/1910 Hulings, 239/539 holds the nozzle i m the 9"? posmon' 1,816,6457/1931 Giordano 239/457 2 Claims, 1 Drawing Figure PAIENTEMW 29 1914 W]l/27 W 1 LIQUID SPRAY NOZZLE This invention pertains to liquid spraynozzles and particularly to an adjustable nozzle wherein means areprovided to lock the nozzle in any one of a plurality of adjustedpositions.

The volume of liquid discharged from a spray nozzle is usuallycontrolled by changing the position of the nozzle head relative to thedischarge opening of the nozzle. ln many cases this adjustment isaccomplished by providing a threaded connection between the nozzle headand the nozzle body. As the head is threadably turned relative to thenozzle body it varies the size of the spray opening of the nozzle. lnnozzles of this type it is important to be able to lock the nozzle headin any one of a number of adjusted positions.

It is the intention and general object of this invention to provide anozzle having an adjustable head threadably received in the nozzle bodywith simplified means to lock the nozzle head in any one of a number ofadjusted positions.

An additional object of the subject invention is to provide a nozzle ofthe hereinbefore described type with a locking bolt passing through anopening in the nozzle head eccentric to the axis of the head forthreaded reception in one of a plurality of threaded bores in the nozzlebody.

A more specific object of the subject invention is to provide a nozzleof the hereinbefore described type wherein the nozzle bolt is adjustablyaccessible from the discharge end of the nozzle.

These and other objects of the subject invention will become moreapparent as the following description is read in light of the attacheddrawing which is a crosssectional view of a nozzle constructed inaccordance with the invention.

Referring to the drawing the nozzle of this invention includes a hollowbody portion generally designated 6. The inlet end 7 of the nozzleflares outwardly terminating in an annular shoulder 8 for attachment toa liquid containing pipe 9. The connection between the nozzle and thepipe may be effected in any conventional manner and is herein shown asincluding a ring clamp 11 tightly bolted to the pipe flange 12 by aplurality of circumferentially spaced bolts 13. The flared end of thenozzle body is tightly wedged between the ring clamp and the pipe flangeto hold the nozzle in place.

The other end of the nozzle body terminates in a conical surface 14providing a discharge opening for the nozzle.

A plurality of ribs 16 rigidly connected to the interior surface of thenozzle body extend radially inwardly and tenninate in an internallythreaded hub 17. The hub is coaxially located on the axis of the conicaldischarge opening 14. The hub 17 is provided with a plurality ofcircumferentially spaced threaded bores 18 concentrically located aboutthe axis of the hub.

A nozzle head generally designated 19 is provided with a conical end 21and-a threaded end 22. The threaded end 22 is threadably received withthe hub 17 and thereby locates the conical end 21 relative to theconical opening 14 so as to provide an annular liquid spray passage 23between the head and the nozzle body. An axially extending opening 24 isprovided longitudinally through the nozzle head parallel to the axis ofthe head and radially spaced therefrom. This opening is selectivelyalignable with the internally threaded bores 18.

The size of the liquid spray passage 23 can be adjusted by threadablyturning the head 19 in the hub 17. Once the proper adjustment of thespray passage is obtained an elongated rod 26 having; one threaded end27 is extended through the opening 24 and threadably turned into analigned bore 18. In this manner the nozzle spray head is firmly lockedin the adjusted position. Furthermore, because the rod 26 extends to thedischarge end of the head the nozzle head can be adjusted withoutdismantling any portion of the nozzle other than to remove the rod 26.

The embodiments of the invention in which an exclu sive property orprivilege is claimed are defined as follows:

l. A liquid spray nozzle comprising: a hollow body internally contouredto provide a discharge opening at one end thereof; a plurality of ribsconnected to said body and extending inwardly therefrom and supportingan internally threaded hub; an adjustable head having one threaded endadjustably threadably supported in said hub with the other end thereofextending into said discharge opening and being externally contoured toprovide an annular opening therebetween, said head being adjustable insaid hub to vary the size of said annular opening; a plurality of circumferentially spaced threaded bores in said hub radially spaced from endconcentrically located about the axis of the threaded portion of saidhub; walls defining an axially extending opening through said headradially spaced from the axis thereof and selectively alignable withsaid threaded bores; and an elongated rod having one threaded endextending through said axially extending opening and engaged in one ofsaid bores to prohibit relative rotation between said body and saidhead.

2. The nozzle set forth in claim 1 wherein the other end of saidelongated rod is adjustably accessible from the discharge end of saidnozzle.

t =l i

1. A liquid spray nozzle comprising: a hollow body internally contouredto provide a discharge opening at one end thereof; a plurality of ribsconnected to said body and extending inwardly therefrom and supportingan internally threaded hub; an adjustable head having one threaded endadjustably threadably supported in said hub with the other end thereofextending into said discharge opening and being externally contoured toprovide an annular opening therebetween, said head being adjustable insaid hub to vary the size of said annular opening; a plurality ofcircumferentially spaced threaded bores in said hub radially spaced fromend concentrically located about the axis of the threaded portion ofsaid hub; walls defining an axially extending opening through said headradially spaced from the axis thereof and selectively alignable withsaid threaded bores; and an elongated rod having one threaded endextending through said axially extending opening and engaged in one ofsaid bores to prohibit relative rotation between said body and saidhead.
 2. The nozzle set forth in claim 1 wherein the other end of saidelongated rod is adjustably accessible from the discharge end of saidnozzle.